So we can have four total hydrogens bonding here, - and we can think about how to describe these carbon- carbon bonds.
我们这里一共有四个氢原子成键,我们可以考虑怎么来-,描述碳碳键。
I thought London gives me enough to do for the next four years while I am studying to have a life.
我觉得在我学会在这里生活的时候,伦敦给予了我足够在未来四年里可以做的事情。
So we can think about now doing bonding, and now we have four equal orbitals with one electronic each.
我们现在可以考虑成键了,现在我们有4个等价的轨道,每个上面有1个电子。
Let's say you have to go through three or four operations to get a final number, well, do it algebraically.
让我们说,你不得不通过3-4个操作,才能得到最终的数,好吧,用代数方法求解。
Because it takes three units where there's only four choices at each position to have at least 20 unique combinations.
因为每个位点上仅有四种可能性,只有采用三个碱基一组,才能取得至少二十种不同的组合方式
It's about the four-dollar cup of coffee that we have three times a day, because we need to keep the feel going.
可能只是节省一杯4美元的咖啡,我们每天要喝三次咖啡,只是为了留住这种感觉。
Four years later, as of today, 76% I think we have about 76% of the Chinese search traffic.
而四年之后的今天,这个数据已经上升到。
You'd have four times as many companies but you might not have four times as much valuable innovation.
有的只是四倍数量的公司,但是,你能够有的有价值的创新想法却远远不够。
And not only was it a party school, you were going to have an amazing time for the four years and beyond.
不仅是个派对大学,而且未来四年甚至以后,都会过得很快乐。
In the next line four lines, we have Camus; the god of the river Cam appears.
下面四行,开姆斯;,开姆河河神出现了。
Why do you have four different chapters of this book, all telling the same story?
为什么一本书要有四个不同的章节,来讲述同一个故事?
For at least four decades, people have been building tools called debuggers.
在过去的至少四十年里,人们一直在做一种叫做调试器的工具。
You might have four independent sculptures in there, but they relate one to another; they make some sort of special sense one to another.
你有四个独立的雕塑,但他们却彼此联系,彼此间好像有某种特别的意义
Now going from three to four right, so we have another isothermal process for an ideal gas, so I won't try to make you sing again so soon.
从第三点到第四点,这也是一个理想气体的,恒温过程,这次不用你们集体回答了。
We have probably four great reform periods in American history.
我们美国历史上约有四个大改革时期
At the moment we have been assigned four TAs, though looking around we won't need four TAs, but at the moment we have Da-Ihn Yoo, we have Michael Verriman, we have Andrey Ivanov, and we have Brian Reilly.
目前给我们安排了四个助教,虽然我觉得用不了四个,不过我们目前还是有余大有,和迈克尔·韦里曼和安德烈·伊凡诺夫,还有布莱恩·莱利
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